diff -Naur gpsd-3.16/gpsd.c gpsd-3.16-patched/gpsd.c
--- gpsd-3.16/gpsd.c	2016-01-04 15:22:45.000000000 -0500
+++ gpsd-3.16-patched/gpsd.c	2017-06-30 09:03:19.481215064 -0400
@@ -140,6 +140,7 @@
 #ifndef FORCE_NOWAIT
 #define NOWAIT nowait
 static bool nowait = false;
+static bool batteryRTC = false;
 #else /* FORCE_NOWAIT */
 #define NOWAIT true
 #endif /* FORCE_NOWAIT */
@@ -1513,7 +1514,7 @@
      */
     if ((changed & TIME_SET) == 0) {
 	//gpsd_log(&context.errout, LOG_PROG, "NTP: No time this packet\n");
-    } else if ( 0 >= device->fixcnt ) {
+    } else if ( 0 >= device->fixcnt && !batteryRTC ) {
         /* many GPS spew random times until a valid GPS fix */
 	//gpsd_log(&context.errout, LOG_PROG, "NTP: no fix\n");
     } else if (isnan(device->newdata.time)) {
@@ -1836,7 +1837,7 @@
 #endif /* PPS_ENABLE && SOCKET_EXPORT_ENABLE */
 #endif /* CONTROL_SOCKET_ENABLE */
 
-    while ((option = getopt(argc, argv, "F:D:S:bGhlNnP:V")) != -1) {
+    while ((option = getopt(argc, argv, "F:D:S:bGhlNnrP:V")) != -1) {
 	switch (option) {
 	case 'D':
 	    context.errout.debug = (int)strtol(optarg, 0, 0);
@@ -1873,6 +1874,9 @@
 	    nowait = true;
 #endif /* FORCE_NOWAIT */
 	    break;
+	case 'r':
+	    batteryRTC = true;
+	    break;
 	case 'P':
 	    pid_file = optarg;
 	    break;